A high temperature resistant water hose

Abstract

A high-temperature resistant water hose comprises a wear-resistant insulation layer and a lining layer, wherein the lining layer is bonded to the inner surface of the wear-resistant insulation layer; the wear-resistant insulation layer and the lining layer form a multi-layer composite structure; the wear-resistant insulation layer is used to protect the lining layer and reduce the transfer of ambient heat to the lining layer. The high-temperature resistant water hose of the present invention can increase the thermal resistance of the ambient heat in a high-temperature fire scene to the water hose lining layer, ensuring the normal operation of the water hose in a high-temperature fire environment.

Description

Technical Field

[0001] The present invention relates to the technical field of special robots, in particular to a high-temperature resistant fire hose. Background Art

[0002] Firefighting robots and fire hoses are essential equipment used at fire scenes, and their safety and reliability are crucial. However, due to high temperatures, the hose's strength can decrease to varying degrees. Existing fire hoses are generally suitable for temperatures below 85°C and are typically only used within the perimeter of a fire scene to extinguish fires. In recent years, with the rapid development of the firefighting manufacturing industry and the continuous advancement of technology, various advanced equipment has been applied to the firefighting field. Firefighting robots have emerged that can penetrate high-temperature areas within a fire scene. However, existing fire hoses can be damaged if they enter high-temperature areas for firefighting, making them incapable of completing firefighting tasks.

[0003] Chinese patent application publication number CN 110812756 A discloses a high-temperature, flame-retardant fire hose. The application discloses a technical solution that utilizes polyimide fiber, aramid fiber, and EPDM rubber to achieve a high-temperature-resistant hose, thereby increasing the hose's maximum operating temperature. However, in practice, the polyimide fiber, aramid fiber, and EPDM rubber used are generally only capable of operating within the 200-300°C range. Furthermore, their strength decreases rapidly with increasing ambient temperature, making them incapable of meeting the demands of complex high-temperature environments. Summary of the Invention

[0004] In order to solve the shortcomings of the existing technology, the purpose of the present invention is to provide a high-temperature resistant water hose, which adopts a wear-resistant insulation layer and a lining layer structure, which can increase the heat transfer resistance of the ambient heat in the high-temperature fire scene to the water hose lining layer, and ensure that the water hose works normally in the high-temperature fire environment.

[0005] To achieve the above purpose, the present invention provides a high temperature resistant water hose, comprising a wear-resistant heat-insulating layer and a lining layer, wherein:

[0006] The lining layer is bonded to the inner surface of the wear-resistant heat-insulating layer;

[0007] The wear-resistant heat-insulating layer and the lining layer are a multi-layer composite structure;

[0008] The wear-resistant heat-insulating layer is used to protect the lining layer and reduce the transfer of ambient heat to the lining layer.

[0009] Furthermore, the wear-resistant heat-insulating layer includes a wear-resistant layer, a heat-insulating layer, a heat-dissipating layer, an edge-sealing structure and a connecting structure, wherein:

[0010] The wear-resistant layer is a metal braided mesh tube, which is used to prevent the thermal insulation layer, the heat-balancing layer, and the lining layer from wearing out;

[0011] The heat insulation layer is made of a material with low thermal conductivity, and is used to prevent heat from being transferred into the lining layer;

[0012] The heat-sparing layer is made of high thermal conductivity metal material to ensure uniform temperature of the inner layer;

[0013] The edge sealing structure is used to press the edges of the wear-resistant layer and the heat-insulating layer;

[0014] The connection structure is used to connect and fasten the wear-resistant layer, the heat-insulating layer and the heat-leveling layer.

[0015] Furthermore, the wear-resistant layer is formed by weaving warp and weft through twill or plain weave; the material of the warp and weft is nickel-chromium alloy or stainless steel.

[0016] Furthermore, the thermal insulation layer is made of aerogel material, glass fiber or ceramic fiber material.

[0017] Furthermore, the heat-absorbing layer is made of copper, aluminum or aluminum alloy.

[0018] Furthermore, the connection structure is a rivet, which rivets the wear-resistant layer, the heat insulation layer and the heat-absorbing layer together.

[0019] Furthermore, the lining layer includes a pressure-bearing lining layer and a coating layer, wherein:

[0020] The pressure-bearing lining layer is used to reduce flow resistance and transport liquid;

[0021] The coating layer is used to further reduce the heat transfer of the high temperature environment to the rubber material of the lining layer.

[0022] Furthermore, the pressure-bearing lining layer is made of EPDM rubber or silicone material.

[0023] Furthermore, the coating layer is an aerogel coating layer sprayed on the outer surface of the pressure-bearing lining layer.

[0024] To achieve the above objectives, the present invention also provides a fire-fighting robot system, which uses the high-temperature resistant water hose described above.

[0025] The high temperature resistant water hose of the present invention has the following beneficial effects:

[0026] 1) Use a wear-resistant heat-insulating layer instead of the ordinary woven layer and spray aerogel coating on the outer surface of the lining layer. When the water hose works in a high-temperature fire environment, the heat in the fire will not be directly transferred to the pressure-bearing lining layer, ensuring that the water hose can work normally.

[0027] 2) The alloy material of the wear-resistant layer has a low friction coefficient with the ground, which reduces the drag resistance of the water hose, and the wear resistance of the water hose is greatly improved compared with ordinary water hoses.

[0028] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a cross-sectional view of a high-temperature resistant water hose according to the present invention. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Figure 1 A cross-sectional view of a high temperature resistant water hose according to the present invention is shown as follows: Figure 1 As shown, the high temperature resistant water hose of the present invention comprises a wear-resistant heat-insulating layer and a lining layer, wherein:

[0033] The lining layer is bonded to the inner surface of the wear-resistant heat-insulating layer through a high-temperature resistant silicone adhesive.

[0034] The wear-resistant heat-insulating layer and the lining layer are a multi-layer composite structure. The wear-resistant heat-insulating layer is mainly used to protect the lining layer from the influence of the high-temperature fire environment.

[0035] Preferably, the wear-resistant heat-insulating layer includes a wear-resistant layer 1, a heat-insulating layer 2, a heat-absorbing layer 3, an edge-sealing structure 6 and a connecting structure 7; the lining layer includes a pressure-bearing lining layer 4 and a coating layer 5, wherein:

[0036] The wear-resistant layer 1, the heat-insulating layer 2, and the heat-dissipating layer 3 are arranged in sequence from the outside to the inside.

[0037] The wear-resistant layer 1 is made of alloy material, and the warp and weft are woven in twill or plain weave; the alloy material is nickel-chromium alloy or stainless steel. In order to improve the wear resistance of the braided mesh tube, the material also needs to contain an appropriate amount of manganese.

[0038] The heat insulation layer 2 is an aerogel layer, which is used to prevent heat from entering the water hose lining.

[0039] In this embodiment, the insulation layer 2 is made of aerogel, glass fiber, or ceramic fiber. For cost control, two sheets of aerogel mat can be used instead. Aerogel mats or aerogel tubes can operate normally at temperatures above 800°C and have extremely low thermal conductivity, providing excellent high-temperature resistance, flame retardancy, and thermal insulation.

[0040] The heat-dissipating layer 3 is woven from a high-thermal-conductivity metal and is used to ensure uniform temperature of the inner layer.

[0041] In this embodiment, the heat-equalizing layer 3 is made of red copper material, which has a high thermal conductivity. When a small section of the water hose is in an environment with too high an ambient temperature, or when severe working conditions occur and cause the wear-resistant layer 1 and the heat-insulating layer 2 to be damaged, the large amount of heat transmitted from the damaged position can be quickly diffused, thereby avoiding damage to the lining layer at the damaged position due to excessive temperature.

[0042] The edge sealing structure 6 is a U-shaped structure, made of the same nickel-chromium alloy or stainless steel as the wear-resistant layer 1, and is used to press the wear-resistant layer 1 and the thermal insulation layer 2 to prevent the thermal insulation layer material from affecting the flat storage of the fire hose.

[0043] The connecting structure 7 is used to connect and fasten the wear-resistant layer 1, the heat-insulating layer 2, and the heat-dissipating layer 3.

[0044] In this embodiment, the connection structure 7 is a rivet, which is connected by riveting, or other connection methods can be replaced according to different needs.

[0045] The pressure-bearing lining layer 4 is made of an aerogel-sprayed EPDM rubber or silicone lining layer, and has a smooth inner surface for reducing flow resistance and transporting liquids.

[0046] The coating layer 5 is an aerogel coating layer sprayed on the outer surface of the pressure-bearing lining layer 4, which is used to further reduce the impact of the high temperature environment on the rubber material of the lining layer and improve the safety of the water hose.

[0047] Preferably, the wear-resistant layer 1 , the heat-insulating layer 2 , and the heat-absorbing layer 3 are connected by rivets.

[0048] The high-temperature resistant water hose of the present application increases the heat transfer resistance of the ambient heat in the high-temperature fire scene to the water hose lining layer through the above-mentioned technical means, and can effectively avoid the local thermal runaway caused by thermal short circuit, so as to ensure that the water hose can work normally in the high-temperature fire environment.

[0049] Those skilled in the art will understand that the foregoing descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will be able to modify the technical solutions described in the foregoing embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high temperature resistant water hose, characterized in that: It includes a wear-resistant heat-insulating layer and a lining layer, wherein: The lining layer is bonded to the inner surface of the wear-resistant heat-insulating layer; The wear-resistant heat-insulating layer and the lining layer are a multi-layer composite structure; The wear-resistant heat-insulating layer is used to protect the lining layer and reduce the transfer of ambient heat to the lining layer; The wear-resistant heat-insulating layer includes a wear-resistant layer, a heat-insulating layer, a heat-dissipating layer, an edge-sealing structure and a connecting structure, wherein: The wear-resistant layer is a metal braided mesh tube, which is used to prevent the thermal insulation layer, the heat-balancing layer, and the lining layer from wearing out; The heat insulation layer is made of a material with low thermal conductivity, and is used to prevent heat from being transferred into the lining layer; The heat-sparing layer is made of high thermal conductivity metal material to ensure uniform temperature of the inner layer; The edge sealing structure is used to press the edges of the wear-resistant layer and the heat-insulating layer; The connecting structure is used to connect and fasten the wear-resistant layer, the heat-insulating layer and the heat-absorbing layer; The wear-resistant layer, heat-insulating layer and heat-absorbing layer are arranged in sequence from the outside to the inside; The lining layer comprises a pressure-bearing lining layer and a coating layer, wherein the coating layer is located on the outer surface of the pressure-bearing lining layer; The pressure-bearing lining layer is used to reduce flow resistance and transport liquid; The coating layer is used to further reduce the heat transfer of the high temperature environment to the rubber material of the lining layer; The coating layer is an aerogel coating layer sprayed on the outer surface of the pressure-bearing lining layer.

2. The high temperature resistant water hose according to claim 1, characterized in that: The wear-resistant layer is formed by weaving warp and weft through twill or plain weave; the material of the warp and weft is nickel-chromium alloy or stainless steel.

3. The high temperature resistant water hose according to claim 1, characterized in that: The heat insulation layer is made of aerogel material, glass fiber or ceramic fiber material.

4. The high temperature resistant water hose according to claim 1, characterized in that: The heat-sparing layer is made of copper, aluminum or aluminum alloy.

5. The high temperature resistant water hose according to claim 1, characterized in that: The connection structure is a rivet, which rivets the wear-resistant layer, the heat insulation layer and the heat-dissipating layer together.

6. The high temperature resistant water hose according to claim 1, characterized in that: The pressure-bearing lining layer is made of EPDM rubber or silicone material.

7. A firefighting robot system, characterized in that: Use the high temperature resistant water hose described in any one of claims 1 to 6.

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